Joint width expansion jig

Abstract

To provide a joint width expansion jig that can be inserted into joints between building panels and can easily expand the joint width.SOLUTION: A joint width expansion jig 1 is inserted from the interior of a building B into a joint B4 between exterior wall panels B3 aligned in the building's frontage direction to expand the joint width. The joint width expansion jig 1 comprises: a jig body portion 10 extending lengthwise; an insertion portion 20 provided at one end of the jig body portion in an extension direction of the jig body portion, protruding in a direction intersecting the extension direction of the jig body portion and inserted into the joint B4; a contact portion 30 provided on one end side of the extension direction of the jig body portion, protruding in the opposite direction to the protrusion of the insertion portion and contacting a structural member of the building located opposite the joint; and a handle portion 40 provided on the other end side of the extension direction of the jig body portion to be gripped by an operator.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a joint width widening jig, and more particularly to a joint width widening jig that is inserted into a joint between building panels to widen the width of the joint. [Background technology]

[0002] BACKGROUND ART Conventionally, when a building is constructed or repaired (repaired), work is carried out to adjust the width of the joints between exterior wall panels arranged in the frontage direction or vertical direction of the building. For example, the joint width adjustment jig in Patent Documents 1 and 2 is a jig that expands the width of a joint between architectural panels lined up in the direction of the building's frontage by inserting it into the joint from the inside of the building (indoor side) and operating it when the joint width is small. By using the above jig, the width of the joint between the exterior wall panels can be easily expanded. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2015-059359 [Patent Document 2] Japanese Patent Application Laid-Open No. 2006-009284 Summary of the Invention [Problem to be solved by the invention]

[0004] When fixing exterior wall panels to the building's framework (columns and beams), the framework members (columns) may be placed facing the joints between the exterior wall panels lined up in the building's frontage direction, or the framework members (beams) may be placed facing the joints between the exterior wall panels lined up in the building's vertical direction. In such cases, due to the presence of structural members (columns and beams), there was a risk that a jig such as that described in Patent Documents 1 and 2 could not be inserted into the joint. In other words, in order to insert the jig (the tip of the jig) into the joint from inside the building, it was necessary to pass the tip of the jig through the gap between the exterior wall panel and the structural members (columns and beams) and insert it into the joint. In such a situation, it was necessary to operate the jig so as to expand the width of the joint.

[0005] An object of the present invention is to provide a joint width expansion jig that can be inserted into a joint between building components (building panels) and easily expand the width of the joint. Another object of the present invention is to provide a joint width expansion tool that can easily expand the width of joints in buildings where structural members (columns, beams, etc.) are placed opposite the joints between architectural panels. [Means for solving the problem]

[0006] The above problem is solved by the joint width expansion jig of the present invention, which is a joint width expansion jig that is inserted into joints between architectural panels lined up in the frontage direction or vertical direction of a building to expand the width of the joint, and which comprises a long extending jig main body portion, an insertion portion that is provided at one end of the extending direction of the jig main body portion and protrudes in a direction intersecting the extending direction of the jig main body portion and is inserted into the joint, an abutment portion that is provided at one end of the extending direction of the jig main body portion and protrudes in the opposite direction to the protruding direction of the insertion portion and abuts against a structural member of the building that is located opposite the joint, and a handle portion that is provided at the other end of the extending direction of the jig main body portion and is held by a worker. The above configuration makes it possible to realize a joint width expansion jig that can be inserted into the joints between building panels and easily expand the width of the joints. Specifically, the joint width expansion jig has an insertion portion that bends and protrudes from one end of a long jig body, and a handle portion provided on the other end of the jig body. This makes it easy to insert the insertion portion into the joint by passing it through the gap between the building panel and the structural member (column, beam, etc.). Then, by operating the handle portion while the insertion portion is inserted into the joint, the joint can be widened. In addition, the joint width expansion jig has an abutment portion that abuts against the structural member located opposite the joint, so by abutting the abutment portion against the structural member (by facing it so that it can abut), the joint width can be expanded stably without coming off the joint.

[0007] In this case, the insertion portion is configured to be inserted into the joint from inside the building and to be able to abut against the side of the building panel, and the joint width expansion jig moves the building panel in the width direction or vertical direction by operating the handle portion while the insertion portion is inserted into the joint and the abutment portion is facing the opposing surface of the structural member. The above configuration makes it easy to insert the tip (insertion part) of the jig into the joint by passing it through the gap between the architectural panel and the structural member (column, beam, etc.). Then, by operating the handle, the worker can make the insertion part come into contact with the side of the architectural panel and push out the architectural panel.

[0008] In this case, the handle portion is preferably provided at the other end of the jig body portion in the extending direction, and bent and extended in the opposite direction to the insertion portion side relative to the jig body portion. The above configuration makes it easier for workers to grip the handle and operate the tool by holding it. More specifically, the handle can be configured to separate from the building panels when the inserting portion is inserted into the joint between the building panels. This allows the worker to grip the handle while avoiding interference with the building panels.

[0009] In this case, the abutment portion is preferably disposed closer to the center of the jig body than the insertion portion in the extending direction of the jig body. As described above, by arranging the contact portion toward the center of the jig body, it is possible to easily pass the tip portion (insertion portion) of the jig through the gap between the building panel and the structural member (column, beam). In other words, it is possible to realize a configuration in which the contact portion can be in contact with the structural member while making it easy to insert the insertion portion into the joint, and the jig can be assembled stably.

[0010] In this case, the contact portion preferably has a permanent magnet provided on the protruding surface of the contact portion or on the protruding surface side thereof, and the permanent magnet is configured to be able to contact the body member. The above configuration allows the contact portion to be properly contacted with a structural member such as a pillar. It is recommended that the magnetic force of the permanent magnet be adjusted to be relatively weak so that the worker can easily operate the joint width expansion jig. In other words, it is recommended that the magnetic force be adjusted so that the worker can operate the jig but will not come off the structural member if it falls from his / her hand.

[0011] In this case, the insertion portion of the joint width expansion jig is inserted into the joint from the inside, one end of the jig main body and the abutment portion are positioned between the building panel and the structural member, and the building panel is moved by moving the handle portion up and down with the abutment portion facing the structural member. The above configuration realizes a joint width expansion jig that can easily expand the width of joints between architectural panels in buildings where structural members (columns, beams, etc.) are placed facing each other in the joints. In other words, it is possible to easily insert the jig (insertion portion of the jig) into the joint while avoiding the structural members of the building. In addition, the worker can easily move the handle up and down, expanding the joint width while pressing the architectural panel. [Effects of the Invention]

[0012] The joint width widening jig of the present invention is inserted into a joint between building components (building panels) and can easily widen the width of the joint. Furthermore, in buildings where structural members (columns, beams, etc.) are arranged facing the joints between architectural panels, it becomes possible to easily expand the width of the joints. [Brief explanation of the drawings]

[0013] [Figure 1] This is an oblique view of the building's structure (columns, exterior wall panels) and joint width expansion jig. [Figure 2] This is a side view of the skeleton (columns, beams, and exterior wall panels), showing the state in which the exterior wall panels are installed relative to the columns and beams. [Figure 3] This is an oblique view of the columns, exterior wall panels, and joint width expansion jig as seen from inside the building. [Figure 4] A diagram showing the state in which a joint width expansion jig is attached to a joint. [Figure 5] FIG. 10 is a side view of the joint width widening jig. [Figure 6] FIG. 10 is a front view of the joint width widening jig. [Figure 7] This is a plan view of the pillar and exterior wall panel, showing the state in which a joint width expansion jig is attached to the joint. DETAILED DESCRIPTION OF THE INVENTION

[0014] Hereinafter, an embodiment of the present invention will be described with reference to FIGS. This embodiment relates to a "joint width expansion jig" that makes it possible to easily expand the width of joints in buildings where structural components (columns, beams, etc.) are placed opposite the joints between architectural panels.

[0015] <Overall structure> As shown in Figures 1 to 4, the joint width expansion jig 1 is a jig that is inserted from inside the building into the joint B4 between the exterior wall panels B3 (B3A, B3B) that make up the building's main body B, and is used to expand the width of the joint B4. Specifically, in a building where the main body (column B1) is positioned opposite joint B4, the joint width expansion jig 1 inserts the tip of the jig 1 (insertion portion 20) into joint B4 while avoiding the column B1, and by moving the handle portion 40 up and down, the insertion portion 20 presses against the exterior wall panel B3, thereby expanding the width of joint B4. As a result, even when a column B1 (or a beam B2) is placed opposite the joint B4, the width of the joint B4 can be easily expanded using the joint width expansion jig 1. At this time, by bringing the abutment portion 30 of the jig 1 into contact with (facing) the opposing surface B1a of the column B1, the worker can stably operate the jig 1, and the width of the joint B4 can be expanded efficiently. Although details will be described later, the joint width expanding jig 1 expands the width of the joint B4 by utilizing the principle of leverage. Hereinafter, the building frame B will be described, and then the joint width widening jig 1 will be described in detail.

[0016] 1 to 3, the building skeleton B includes a column B1, a beam B2, a plurality of exterior wall panels B3 arranged in the width direction and vertical direction of the building, and joints B4 formed between the exterior wall panels B3A and B3B. The column B1 and the joints B4 are arranged opposite each other in the width direction of the building. As shown in Figures 1 and 2, the exterior wall panel B3 is a plate-like exterior wall material that constitutes the skeleton B and is an architectural panel that is installed facing the outside of the building. The exterior wall panel B3 is positioned outside the columns B1 and beams B2 in the projection direction of the skeleton B. Specifically, the exterior wall panel B3 has a panel frame B3a with a U-shaped cross section assembled into a rectangular frame, an insulation board B3b placed on the surface of the panel frame B3a, a base member B3c placed on the surface of the insulation board B3b, and a finishing surface material B3d placed on the surface of the base member B3c. The base members B3c, also called furring strips, are members for ensuring breathability and are arranged at intervals in the direction of the building's frontage. Heat insulating material B3e (e.g., glass wool) is arranged in the area surrounded by the panel frames B3a. 2, a fixing shaft B3f for fixing to the panel fixing metal fitting B5 (panel fixing hole B5a) is provided at the lower end on the rear surface of the panel frame B3a, and a fixing nut B3g for fixing to the second panel fixing metal fitting B6 (panel fixing hole B6a) is provided at the upper end on the rear surface of the panel frame B3a.

[0017] A joint B4 (gap) is formed between the left and right exterior wall panels B3A and B3B to allow for expansion due to temperature changes, etc. After construction or repair work on the building is completed, a joint material (such as a sealant or dry gasket) will be filled into the joint B4. As described above, the column B1 and the joint B4 are arranged opposite each other with a predetermined distance (gap) between them in the projection direction of the building.

[0018] The construction work and joint width adjustment work for the above-mentioned skeleton B will be explained with reference to Figs. The worker attaches the exterior wall panel B3 to the panel fixing brackets B5 and second panel fixing brackets B6 attached to the column B1 and beam B2. The exterior wall panel B3 is then lifted up by a lifting device and installed in the designated position on the frame B (the main body of the frame B). When attaching the exterior wall panel B3, the fixing shaft B3f at the lower end of the exterior wall panel B3 is fitted into the panel fixing holes B5a and B6a, as shown in Figure 2. Then, the exterior wall panel B3 is pulled toward the body B, and the fixing nut B3g at the upper end of the exterior wall panel B3 is inserted into the panel fixing hole B6a of the second panel fixing bracket B6 (provided separately), and the exterior wall panel B3 is fixed with the fixing bolt B7.

[0019] The worker then checks the width of the joint B4 between the exterior wall panels B3A and B3B that are lined up in the direction of the building's frontage (for example, a joint width of 10 mm is recommended). If the width of the joint B4 is narrow, the width of the joint B4 is widened using the joint width widening jig 1. If the width of the joint B4 is wide, it can be adjusted by pushing the exterior wall panels B3A and B3B from directly to the side. Specifically, as shown in Figure 3, the joint width expansion jig 1 is inserted into the joint B4 from the inside of the frame B (column B1, beam B2). At this time, the joint width expansion jig 1 is inserted so that it passes through the gap between the exterior wall panel B3 and the column B1, and the insertion portion 20 of the joint width expansion jig 1 is inserted into the joint B4.

[0020] After setting the joint width expansion jig 1, the worker grasps the handle 40 of the joint width expansion jig 1 and rotates the handle 40 up and down, causing the insertion portion 20 to come into contact with the side of the exterior wall panel B3, pushing out the exterior wall panel B3. At this time, the worker can use the principle of leverage to efficiently apply force with the joint width expansion jig 1 to push out the exterior wall panel B3 (joint B4). For example, as shown in Figure 7, the handle 40 of the joint width expansion jig 1 is the force point, the base end 21 of the insertion portion 20 is the fulcrum, and the tip end 22 of the insertion portion 20 is the point of action. When adjusting the width of joint B4, it is a good idea to loosen fixing bolt B7 as appropriate. After adjusting the width of the joint B4 by moving the exterior wall panel B3, the fixing nut B3g at the upper end of the exterior wall panel B3 is retightened with the fixing bolt B7 to fix it in place.

[0021] <Configuration of joint width expansion jig> As shown in Figures 3 to 7, the joint width expansion jig 1 comprises a long, plate-shaped jig main body 10, an insertion portion 20 provided at one end of the jig main body 10 in the extension direction, an abutment portion 30 provided at one end of the jig main body 10 in the extension direction, a handle portion 40 provided at the other end of the jig main body 10 in the extension direction, and a second insertion portion 50 provided at the other end of the jig main body 10 in the extension direction.

[0022] The insertion portion 20 is a protruding portion (claw portion) that is inserted into the joint B4, is integrally connected to one end of the jig main body portion 10, and protrudes in a direction that intersects (is perpendicular to) the extension direction of the jig main body portion 10. The insertion portion 20 is preferably bent at 90 degrees (approximately 90 degrees) and protrudes from one end of the jig body 10. This increases the area over which the insertion portion 20 abuts against the side surface of the exterior wall panel B3 after the insertion portion 20 is inserted into the joint B4. This makes it easier to push the exterior wall panel B3 apart with the insertion portion 20. The insertion portion 20 may be bent at an acute or obtuse angle relative to one end of the jig body portion 10 and protrude.

[0023] The contact portion 30 is a portion that contacts the column B1 located in a position facing the joint B4 of the skeleton B, and is a protruding portion with a three-dimensional shape (a rectangular parallelepiped shape) that is connected to one end portion in the extension direction of the jig body portion 10. The contact portion 30 protrudes in the opposite direction to the protruding direction of the insertion portion 20. The contact portion 30 is disposed closer to the center of the jig body 10 than the insertion portion 20 in the extending direction of the jig body 10 .

[0024] The contact portion 30 has a rectangular parallelepiped contact main body 31 and a permanent magnet 32 ​​attached to a contact surface 31 a of the contact main body 31 . The permanent magnet 32 ​​is, for example, a plate-shaped or ring-shaped ferrite magnet, and is housed inside the contact main body 31 in a state where it is exposed from the contact surface 31a. In other words, the contact surface 31a and the surface of the permanent magnet 32 ​​are configured to be flush (approximately flush). As described above, the joint width expansion jig 1 can be made lighter by increasing the thickness of only a portion of the jig main body 10 (by providing the abutment portion 30) rather than increasing the overall thickness of the jig main body 10.

[0025] The handle 40 is a portion that is gripped by an operator, and is integrally connected to the other end of the jig body 10 in the extending direction. The handle portion 40 is bent and extends relative to the jig body portion 10 on the side opposite to the insertion portion 20. The handle portion 40 is also formed to be narrower than the jig body portion 10, making it easy for an operator to grip. The second insertion portion 50 is an extension portion that can be inserted into the joint B4, and is integrally connected to the extended end of the handle portion 40, and is formed on the end of the joint width expansion jig 1 opposite to the insertion portion 20. The tip portion of the second insertion portion 50 has an inclined shape, making it easy to insert into the joint B4. For example, when the joint B4 and the skeleton member of the skeleton B are not opposed to each other, the second insertion portion 50 can be inserted into the joint B4 instead of the insertion portion 20.

[0026] With the above configuration, as shown in Figure 7, the joint width expansion jig 1 can move the exterior wall panel B3 in the width direction by operating the handle portion 40 while the insertion portion 20 is inserted into the joint B4 and the abutment portion 30 is facing the opposing surface of the column B1. More specifically, the joint width expansion jig 1 has the insertion portion 20 inserted into the joint B4 from the inside, the tip of the jig main body 10 and the abutment portion 30 positioned between the exterior wall panel B3 and the pillar B1, and by moving the handle portion 40 up and down with the abutment portion 30 facing the pillar B1, the exterior wall panel B3 can be pressed and the joint B4 can be expanded. In particular, the worker can utilize the principle of leverage to efficiently apply force to push open the exterior wall panel B3 (joint B4) with the joint width expansion jig 1. For example, the handle portion 40 of the joint width expansion jig 1 can be the force point, the base end portion 21 of the insertion portion 20 can be the fulcrum, and the tip portion 22 of the insertion portion 20 can be the point of action.

[0027] The above-described joint width expanding jig 1 can be inserted into the joint B4 between the exterior wall panels B3 to easily expand the width of the joint B4. In particular, in a building in which structural members (columns B1, beams B2, etc.) are arranged opposite the joint B4 between the exterior wall panels B3, the width of the joint B4 can be easily expanded. Furthermore, by providing the abutment portion 30, the joint width expansion jig 1 can be used in a state of abutting against the pillar B1 so that it will not come off the joint B4 when force is applied to the jig. In particular, by adjusting the magnetic force of the permanent magnet 32, the worker can operate the jig, and it can be set so that it will not come off the pillar B1 if it falls from hand.

[0028] <Other embodiments> In the above embodiment, as shown in Figs. 1 to 3, the joint width widening jig 1 is inserted into the joint B4 of the exterior wall panels B3 arranged in the frontage direction of the building, but this is not particularly limited. For example, the joint width widening jig 1 may be inserted into a joint B4 of an exterior wall panel B3 arranged vertically of a building. In this case, a beam B2 or the like is assumed as a structural member facing the joint B4. Furthermore, for example, the joint width widening jig 1 may be inserted into the joints of building panels (such as waist wall panels) other than the exterior wall panel B3.

[0029] In the above embodiment, as shown in Figure 7, the abutment portion 30 is configured to abut against the column B1 (the body member located opposite the joint B4), but it does not necessarily have to abut against the column B1 at all times. Specifically, when the joint width expansion jig 1 (insertion portion 20) is inserted into the joint B4, the abutment portion 30 abuts against the opposing surface of the column B1, or may be configured to be able to abut against it. For example, the abutment portion 30 may be arranged opposite the opposing surface of the column B1 with a slight gap between them, and may be configured to abut against the opposing surface of the column B1 when the joint width expansion jig 1 is rotated or dropped. Therefore, "the abutment portion 30 abuts against the column B1 (body member)" includes a configuration in which the abutment portion 30 actually abuts against the column B1, as well as a configuration in which the abutment portion 30 faces the column B1 so as to be able to abut against it.

[0030] In the above embodiment, the joint width widening jig according to the present invention has been mainly described. However, the above embodiment is merely an example for facilitating understanding of the present invention, and does not limit the present invention. The present invention can be modified and improved without departing from the spirit thereof, and the present invention naturally includes equivalents thereof. [Explanation of symbols]

[0031] B. Structure (building structure) B1 pillar B2 Beam B3 Exterior wall panel (construction panel) B3A 1st exterior wall panel B3B 2nd exterior wall panel B3a Panel Frame (Frame) B3b Insulation board (insulation material) B3c Base material B3d Finishing Surface Material (Surface Material) B3e Insulation material (insulation wool) B3f Fixed axis B3g fixing nut B4 joint (gap) B5 Panel Fixing Bracket B5a Panel fixing hole B6 Second panel fixing bracket B6a Panel fixing hole B7 Fixing bolt D interval 1 Joint width expansion jig 10 Jig body 20 Insertion part 21 Proximal end 22 Tip 30 Contact part 30a Contact surface (protruding surface) 31 Contact body part 31a Contact surface 32 Permanent magnets 40 Handle 50 Second insertion part

Claims

1. A joint width expansion tool that is inserted into a joint between architectural panels arranged in the frontage direction or vertical direction of a building to expand the width of the joint, a jig body portion extending in an elongated direction; An insertion portion provided at one end of the extension direction of the jig body portion, protruding in a direction intersecting the extension direction of the jig body portion, and inserted into the joint; a contact portion provided at one end side of the extension direction of the jig body portion, protruding in a direction opposite to the protruding direction of the insertion portion, and abutting against a structural member of the building at a position facing the joint; A joint width expansion jig characterized by having a handle portion provided on the other end side of the extension direction of the jig main body portion and held by the worker.

2. The insertion portion is configured to be inserted into the joint from the inside of the building and to be able to abut against a side surface of the building panel, The joint width expansion jig described in claim 1, characterized in that the insertion portion is inserted into the joint and the abutment portion is opposed to the structural member, and the handle portion is operated to move the architectural panel in the width direction or the vertical direction.

3. A joint width expansion jig as described in claim 1 or 2, characterized in that the handle portion is provided at the other end of the extension direction of the jig main body portion and extends in a bent position opposite the insertion portion side of the jig main body portion.

4. A joint width expansion jig as described in claim 1 or 2, characterized in that the abutment portion is positioned closer to the center of the jig body portion than the insertion portion in the extension direction of the jig body portion.

5. the abutment portion has a permanent magnet provided on a protruding surface or on a protruding surface side of the abutment portion, The joint width widening jig according to claim 4, wherein the permanent magnet is configured to be able to abut against the body member.

6. The joint width expansion jig described in claim 1 or 2, characterized in that the insertion portion is inserted into the joint from the inside, one end of the jig main body and the abutment portion are positioned between the building panel and the structural member, and the building panel is moved by moving the handle portion up and down with the abutment portion facing the structural member.

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